package com.sky.aspect;


import com.sky.annotation.AutoFill;
import com.sky.constant.AutoFillConstant;
import com.sky.context.BaseContext;
import com.sky.enumeration.OperationType;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;
import java.lang.reflect.Method;
import java.time.LocalDateTime;

@Aspect
@Component
@Slf4j
public class AutoFillAspect {


    @Pointcut("execution(* com.sky.mapper.*.*(..)) && @annotation(com.sky.annotation.AutoFill))")
    public   void   autoFillPointCut(){

    }

    @Before("autoFillPointCut()")
    public   void   autoFillAdvice(JoinPoint  joinPoint){
        log.info("公共字段自动填充");
       MethodSignature signature = (MethodSignature) joinPoint.getSignature();

        AutoFill autoFill = signature.getMethod().getAnnotation(AutoFill.class);

        OperationType operationType = autoFill.value();

        Object[] args = joinPoint.getArgs();
        if (args==null || args.length ==0){
            return;
        }

        Object entity = args[0];


        LocalDateTime time = LocalDateTime.now();
        Long currentId = BaseContext.getCurrentId();

        if (operationType== OperationType.INSERT){

            try {
                Method setCreateTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_TIME, LocalDateTime.class);
                Method setUpdateTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME, LocalDateTime.class);
                Method setCreateUser = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_USER, Long.class);
                Method setUpdateUser = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER, Long.class);

                setCreateTime.invoke(entity,time);
                setUpdateTime.invoke(entity,time);
                setCreateUser.invoke(entity,currentId);
                setUpdateUser.invoke(entity,currentId);
            } catch (Exception e) {
                e.printStackTrace();
            }

        }else {
            try {
                Method setUpdateTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME, LocalDateTime.class);
                Method setUpdateUser = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER, Long.class);

                setUpdateTime.invoke(entity,time);
                setUpdateUser.invoke(entity,currentId);
            } catch (Exception e) {
               e.printStackTrace();
            }


        }


    }
}
